Harry Wallop takes to the streets of Victoria to see what people make of the
new Coca Cola Life which has roughly half the sugar content of the original.

Coca-Cola has launched its first major new Cola in nearly a decade: Coke Life. It comes in a green can, with a small leaf logo, and promises to be much healthier than standard Coke.

A 330ml can has 89 calories - a third less than the 129 found in standard Coke. That is because, alongside sugar, it is also uses stevia leaf extract from the stevia plant. This naturally very sweet plant contains zero calories. The company hopes that many consumers will not be able to tell the difference between "green Coke" and normal Coke.

James Quincey at Coca-Cola Europe says: “With Coca-Cola Life, we have innovated to provide consumers with a new option with fewer calories. It complements our existing brands and is well-positioned to meet changing lifestyle trends, providing people with a great-tasting, lower calorie cola sweetened from natural sources.”

The company appears to brush over the fact that the sugar used in standard Coke in the UK is derived from either cane sugar or sugar beet -- both natural sources, grown in fields.

Also, Coke Life despite being lower calories still contains 22g of sugar -- a quarter of an adult's recommended daily allowance.

The Telegraph hit the streets of central London to find out whether consumers could tell Coca-Cola Life from normal Coca-Cola, and which drink they preferred. In all, nearly thirty people undertook the taste test, with the majority, especially regular Coke consumers, able to spot they were different drinks.

Watch the video to find out which they preferred and what they made of Coke Life.